Cyanobium gracile Rippka and Cohen-Bazire 1983 Dataset NCBI Taxonomy Classification kingdom Bacillati phylum Cyanobacteriota class Cyanophyceae order Synechococcales family Prochlorococcaceae genus Cyanobium species Cyanobium gracile Name Homonyms Cyanobium gracile Cyanobium gracile Rippka and Cohen-Bazire 1983 Cyanobium gracile Rippka & Cohen-Bazire, 1983 emend. Komarek et al., 2020